iOS 11 is now running on 81% of active iPhone, iPad and iPod touch devices, up from 76% in April, making it the fastest-adopted operating system out there, ever. Meanwhile, Google’s Oreo installations comprise less than six percent of active Android smartphones and tablets.

iOS 11 is now powering more than two-thirds of active iPhone, iPad and iPod touch devices in the wild. To put that in some context, Android 8.0 Oreo, the latest and greatest version of Google’s mobile operating system, is Installed on 4.6% of devices that use Google’s Play services.

iOS 11 adoption rate has overtaken that of iOS 10 this week as the latest version of Apple’s mobile operating system is now installed on about 48% of iOS devices. In comparison, iOS 10 is still installed on about 45% of devices, according to analytics firm Mixpanel.